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ALWIOS H. RHODES, OF FALL RIVER, MASSACHUSETTS.

Letters PatentNo. 78,761, dated June 9, 1868.

IMPROVEMENT 1N criss.

titte .tigehnle ttfetrh tu in time tetters ntent mit making putt ut tlg sante.

TO ALL WHOM IT MAY CONCERN: 4

Be it known that I, AMOS H. RHODES, of Fall River, in thc county of Bristol, in the State of Massachusetts, have invented a. new and useful Improvement in' e. Gib for a. Steam-Engine; and I do hereby declare that the f'ollowing'is a full and exact description thereofpreference being had to the accompanying drawings, and to the letters of reference marked thereon.

My invention consists in forming a recess in the gib, and fitting therein e metallic block, and securing it to the gib with bolts, screws, or shoulders. l A

Figure 1 is a. perspective View of c. gib, with my invention applied to it.

Figure 2 is a top view of iig. 1, with block B removed.

Fig. 1. A1 is the gh Bl, the metal block; C, the nut in which the cross-head stud is secured. On the under side of this nut is a. projection, shown by C2, which projection is as deep as the thickness of the block B1. Dl is the holtwhich secures the block Bl to A1. El is an adjusting-bolt, to adjust the block B1 to the nut Cl. Fl is the Bcbbit face of the gib.

Fig. 2. A2 is the gib; G2, the recess for met'nl block; d is hole for holt DI; B2, metal block, removed from fig. 2 and reversed; a2, slot through which D1 passes; C2, nut reversed; D2 and E2, bolts and washers removed from fig. 1; c, hole through which bolt E2 passes.

Operation.

In the well-known manner of securing the c rossheed stur to ithe gib, there is no way of removing the gib to supply a. duplicate but by removing the cylinder-heed from the cylinder, the piston-rod from the piston, disconnecting the piston-rod and the sweep,- end sliding the gib out of the guides. By removing the metal block Bl, the gib may be easily and quickly removed, and a. duplicate applied in its place, as will be observed, without further specification.

Claim.

What 1 claim as my invention, and desireto secure by Letters Patent, is The construction and 'arrangement of gib A1, removable block B1, and bolts D1 and El, operating sub.

stcntially as iamd for the purpose set forth and described.

y AMOS I1. RHODES.

Witnesses:

AMAZIAH HARRIS, JNO. DAVIS. 

